Shock-absorber.



W. H. OOOK.

SHOCK ABSORBER.

APPLICATION FILED HALLS. 1913.

- Patented Sept. 16, 1913.

2 SHEETS-SHEET 1.

. W. H. COOK.

SHOCK ABSORBER. A'PPLIOATION FILED Mum), 1912. 1.

Patented Sept. 16,1913.

v BETSBET z.

Z/Z'Zzze'ss es 2% all whom tmoy omwcm Orleans,

' s11 organized structure which belongs, end is of capacity for the Fig. 5 is an 'e eeocu-sssoeess.

specification c letters Patent. Ausellootloh sue hiereh e, 1018. Serial Ho.

native form of connection between the main spring and the shock transmitting element, end which is applicable to either a front mile oee res:- exle shock trensmitti orv gemsetion of the general nature illustrated in Figs. 1 and 3. u

Similar characters Be it known that l, Wheres; H. CGOK, a citizen of the United States, residing at New in the parish of Orleans endfitete of Louisiana, have invested new and useful improvements in @hock Ahsorhere, of which I I the following is s specification of reference designate This invo ution relates to improvements in cl vrresponding parts throughout the several smock ehsoroers and it proposes a construe views.

0 shown in Fig. 1, the mam sprmg sshown at 1, and is arranged shove the side 2; end the cushioning element is shown at 3, and is arranged below said axle. The impulses of the main spring are transmitted to the cushioning element by a shock transmitting element T he cushinning element 3 is in the nature of an elongeted air tube which is of approximately the some length as the Width of the machine; and the shock transmitting element-4 is in the nature of a spring her which is parallel to and of approximately the same len th as the cushion 3 and is connected centrally of its length to the axle 2, as by a. pivot 5, for movement in e vertical plane. The oeposcd hearings for the cushion 3 are provi ed by the bar 4 and the axle 2, the-letter for this purpose carrying a depending frame 6 upon which the cushion 3 rests, and the bar 4 engaging the upper side of said cushion.

The mleations of the main. spring are transmitted to the her 4 by connections tion of that general type wherein the impulses of the main spring ere telien up by a cushioning element through the intermedi- My 0 e shock transmitting element which acts characteristically with Wave-like compressing ellect on the cushioning element. An illustration of the type of construction thus identified is to be found in my U S. Lct-tere Potent No. 1,058,411, granted April 8, 19.13, and the present improvement in valves a. specific o igeniz atiou for carrying out the principles of operation explained in eeld Letters Patent.

The object of the invention is to provide secures all the to the type to which it l such nature as to have special adaptability, in respect of compactiiess, sensitiveness, and efficiency of action, to particular makes of cars.

The adaptability of the construction to particular makes of cars depends upon its arrangement of the bush icuulg element. below the :1xle, in combination with a main spring above the sale, and for the efficient transmission of the impulses of the main spring to the shock transmitting play or lost energy. The connections are, element in such manner that a direct transof course, duplicated at each end of the n'ilssion oi? the hope of the main spring axle, and, as illustrated 1, comprise in which there islittle my, lost motion, is a radius link Y'v'vhich pivoted to a. log 8 achieved without any substantial interfersecured on he axle, :1. link 9 which connects ence with the freedom of movement of said the radius link '7 and the adjacent end of spring. the spring 1; and a link 10 which connects Embodiments of thein-vcntion are illusl the radius link 7 end the adjacent end of the trated in the accompanying drawings, bar the links 5.) and 10 being preferably wherein: coaxially pivoted to the link Figure l is a. view in elevation, illustratnppnrcut thatthe spring 1 has thercquisite ing a shock absorber in which the features freedom of movement or play, and that the of the invention are incorporated in its link 10 moves under the impulses of said upplicatioh to the front axle of a car; Fig. 2 spring in substantially straight lines, pcris a similar View illustrating an alternative pendicular to theuxis of the cushion 3. In-

construction; Figs. 3 and l ere similar views asmuch as the links 10 are connected to the illustrating the mechanical elements shown in Figs. 1 and 2 respectively in their application to a shock absorbing organization.

especially adeiptedfor the rear exle; and

' evetlon illustrating-an alter-,-

In the construction advantages incident;

ment of said spring, and yet transmit its pulsations w1th a minimum degree of loose wavedike compression of the cushion 3, froin the ends toward the center thereof, as is obvious. The construction shown in Fig. 2 differs from the construction shown in Fig.

which allow the requisite freedom of move- 7. u will he ends of the-bar 4, the bar 4 will produce a in the n tureof the connectioi'isbetween the nain spring and the shock transmitting element, and also in that the frame 6, shown in Fig. 1, i. not employed, but instead, the cushioning element 3 is arranged directly against the under face 0* the axle 2, and the shock transmitting bar which, 111 this instance, is designated 4*, engages the underside of the cushion 3. The bar 4:,- like the bar 4, is connected, as by a pivot 5, to the axle 2. The connections betweenthe sprin 1 and the bar 45 comprise levers l1 pivoted centrally thereof to lugs 12 mounted on the axle 2, ivot pin connections between the mner en s of the levers 11 and the adjacent end of the spring 1, and link connections 13 between the outer ends of the levers 11 and the adjacent ends of the bar 4:. Whereas in the organization shown in Fig. 1 a relative lownward movement of the ends of the spring 1 will roduce corresponding downward thrusts or the links 10, in the organization shown in Fig. 2, a relative downward movement of the ends of the spring 1 pro duce an upward thrust of the links 13. It is for this reason that the shock transmitting element is arranged above the cushion in the construction of Fig. l, and below the cushion in the construction of Fig. 2.

Figs. 3 and 4 illustrate organizations similar to those of Figs. 1 and 2 respectively,

I but in connection with a rear axle having a centrally arranged gear case A. Whereas in the constructions of Figs. 1 and 2, a single air cushion extending practically for the width of the machine is employed, in the construction shown in Figs. 3 and a, two air cushions, as 3, are employed, the cushions 3 being arranged at opposite sides of the gear case A. In the construction shown in Fig. 3, a depending yoke 14: is fitted upon the rear axle 2 at each side of the gear case and for a shock transmitting bar i which is pivoted at its inner end, as at 5, between the arms of the yoke 14. The connections for transmitting the impulses of the spring 1 to thetwo bar-s4 are the same as those employed in Fig. 1 for transmitting the impulses of the spring 1 to the bar 4, and are designated by the same reference characters. The construction shown in Fig. 4 involves the use of the cushions 3 ateach side of the gear case A, as in Fig. 3. The shock transmitting bars are indicated by the character 4, one of said barsbeing employed for each cushion 3 and being arranged relatively thereto in the same manner as the bar 4 is arranged relatively to the cushion 3 in Fig. 2. The connections between the ends of the spring 1*" and the shock transmitting bars 4 are similar to the connections between the ends of the spring 1 andthe bar t in Fig. transmitting bar means havin 2, and are designated by the samereference of support and engaging t This yoke furnishes support for a frame '6 corresponding to the frame 6 of Fig. 1,

characters. The bars i are pivoted at their inner ends to yokes 14, generally similar in construction and arrangement to the yokes 1-1 of Fig. 3. Inasmuch as the rear axle 2 is generally of cylindrical outline, it as not practical to arrange the cushions 3" directly against said rear axlc,.but bearing plates 15 are provided which are rigid with the axle 2 and engage the upper sides of the cushions 3 the support for the plates 15 including the yokes 14: and brackets 16 secured adjacent the outer ends of the axle 2.

- Fig. 5 shows mechanical connections between the main spring and the shock tran smitt-ing element which may be employed n lieu of the elements 7 8, 9, and 10, shown in Figs. 1 and 3. In this latter instance, the ends of the spring 1 are connected to radius links 7 which, at their outer ends, are pivoted to lugs 8 secured on the axle, and having a suitable upward and inward inclination. The pivotal connections of the links 7' and the spring 1 form also the pivots of links" 10 which, at their other ends, are connected to the adjacent ends of the bar and are of slight ogee curvature. The principal difference between the construction shown in Fig. 5 and the construction shown in Fig. 1 is the omission from the former of the link 9. But in omitting the link 9, the lugs 8 and the links 10 are so arranged that the compressive thrusts of said links 10 are substantially perpendicular to the axis of the cushion 3.

Having fully described my invention, I claim:

1. In a shock absorber, the combination with a vehicle axle, of a main spring arranged above the axle, pneumatic tube cush- -ioning means arranged below the axle,

shock transmitting bar means engaging the cushioning means, an element pivotally mounted at each end of: the axle and pivotally connected to the adjacent end of the main spring, and a link pivoted to said element at one side of the fixed pivot of the latter and also pivoted to the adjacent end of said shock transmitting bar means.

2., In a shock absorber, the combination with a vehicle axle, of a main spring arranged above the axle, pneumatic tube cushioning means arranged below the axle, shock transmitting bar means engaging the cushioning means, a radius link pivotally mount-.- ed at each end of the axle, a link connecting the radius link and the adjacent end of the main spring, and a second link connecting the radius link and the adjacent end of the shock transmitting bar means.

In a shock absorber, the combination with a vehicle axle, ot a main spring arranged above the axle, pneumatic tube'cushloning means arranged below the axle, shock a fixed point lie cushioning shock trensmitting er engaging the tube central point with the link pivoted to said otell novenoi means end of the axle and ivotelly connected to the adjacent end of t e main spring, and e element at one side of letter and also the fixed Divot of the of said shock transmitto the adiacent end ting her means.

4. In a shock ebsorhenihe.combination with a vehicle axle, of a. main spring a ranged above the axle, neumotic tube cushioning means arranged elow the axle, shock transmitting ber means hevin of support and engaging t e cushionin means, a radius link pivotelly mounted at each end of theexle, a link connecting the radius link and the ad'acent end of the main spring, and a secon link connecting the radius link and the adjacent end of the bar means. L I 5. In a shock absorber, the combination with elvehicle axle, of a main spring errsnged above the axle, n cushioning tube an ranged below the axle, e. shock transmitting" ber,engsging thetube and connected at a central point with the cxle en element pi y mounted at each end of the axle end pivotally connected to the adjacent end of the main staring, and. e

letter and slso pivoted of said shock transmitting her, i

6. In it shock absorber, the combination with a. vehicle axle of e main spring or ranged above the axle, e cushioning tube er: ranged below the axle, a shock transmitting and connected at e axle, a radius link an element pivotelly mounted at each pivoted e fixed point,

link pivoted to said element at one side of the fixed pivot of the to th to the adjacent end" pivotelly mounted at each cnd of the'axle, a

link connecting the radius link and the adjecent end of the main spring, and a second link connecting the radius link and the adjecent end of the shock transmitting bar.

7. In a shock absorber, the combination with an axle, of a main spring sir-ranged above the axle, cushioning means arranged below the main spring and having support from? the axle, shock engaging the cushioning means, an element pivo ally mounted at each end of the dxle end votally connected to the adjacent end of the main spring, and a link pivoted to said element at one side of the fixed pivot of the letter and also pivoted to the adjacent end of eeidshock transmitting her means.

8. In e shock absorber, the combination with on eizle oit' :3, main spring arranged shove the axis, pneumatic tube cushionin means arranged below the main spring on having support from the axle, shock trans- Emitting ber means engaging the cushionin means, an element pivotally mounted at each end of the axle and Eivotnlly connected to the adjacent end of t e main spring, and 2. link pivoted to said element at one the fixed ivot e Mljflfifilii; ting bermeens;

In testimony whereof I have my hand in presence of messes.

of the letter and also pivoted end of said shock transmit hereunto set two subscribing wit- WALTER H; coon; Witnesses CnAnLns H. Neon, E. LLoYn Poesy.

transmitting bar means 1 side of 

